Meet the Team

At The Maas Clinic™, our dedicated team of professionals is committed to providing exceptional care tailored to your unique needs. Led by the expertise of Dr. Corey S. Maas, our staff brings a wealth of experience in the field of aesthetic medicine. From skilled practitioners to caring support staff, each member plays a crucial role in ensuring your experience at The Maas Clinic™ is marked by personalized attention, safety, and outstanding results. Get to know the faces behind your journey towards enhanced beauty and confidence.

Tina

Tina

Practice Manager

Tina joined The Maas Clinic™ as our Practice Manager, offering over ten years of management experience. After attending Hunter College in New York City, she began her career in the health and fitness industry. Her love of beauty and skincare and her passion for helping others feel good about themselves eventually led her to manage a successful 5th Avenue Medspa and Surgical Center. As part of The Maas Clinic™, she is dedicated to providing patients with a great experience and knowledgeable staff. When she is not at work, she loves traveling and exploring her new home state of California.

Alison

Alison

Patient Care Coordinator, Appearance Care Center

Ali is a Bay Area native and a graduate of Chico State University, where she earned her degree in Criminal Justice. She initially began her career in the health and fitness industry, but her personal experiences as an aesthetics patient and her passion for helping others feel and look their best inspired her to pursue a career in the Plastic Surgery and Medical Spa field. As the Patient Care Coordinator of The Appearance Care Center, she is dedicated to consistently providing an outstanding patient experience and helping people achieve their aesthetic goals with all the latest and most effective non-surgical treatments. Outside work, she enjoys traveling, hiking, cooking, and playing with her adorable Pomsky, Kenji. She looks forward to welcoming you to our practice!

Danielle, MSN-ANP

Danielle, MSN-ANP

Aesthetic Nurse Practitioner

Danielle Bautista has worked as a nurse since 2011. She graduated with her Master's in nursing from the University of California, San Francisco, with a double specialty, adult nurse practitioner and occupational and environmental health, and holds a Juris Doctorate from Whittier Law School.

Initially specializing in interventional spine, physical medicine, and sports medicine, she transitioned to regenerative ultrasound-guided injections to aid in rebuilding and repairing the structures of the body. Concurrently, she began working in aesthetics. To her delight, she found much of aesthetics in the same realm as regenerative medicine.

She trained with Dr. Corey Maas, a world-renowned facial plastic surgeon, expert injector, and researcher, for five years and participated in studies for Galderma and Allergan. Danielle is passionate about perpetual learning and the growth of skills and techniques. She regularly attends master injection and PDO thread courses/training. She is grateful for her experience treating anatomy under ultrasound and observing her injection placement in real time; she feels it enhances her skill as a provider.

As an Aesthetic Nurse Practitioner, Danielle is passionate about non-invasive and minimally invasive aesthetic treatments to help her patients modulate the effects of aging and gravity. She offers her patients her expertise in IPL, customized Ultherapy, Scarlet RF (microneedling with radio frequency), PDO thread lift, injectables including neuromodulators (i.e., BOTOX®, Dysport), facial hyaluronic acid fillers to the cheek for volume replacement, tear trough, lips for natural enhancement and volume and chin/jawline reshaping, PRF/PRP/exosomes for the injections to tear trough, the scalp and topically after micro needling.

Danielle lives in San Francisco with her husband and Doberman pup. She enjoys running, adventure travel, philosophy, and a freshly roasted cup of specialty coffee.

Courtney, RN, BSN

Courtney, RN, BSN

Aesthetic Nurse

Courtney has a robust background and experience in aesthetic nursing. Beginning her career with a degree in Business Economics from UC Santa Barbara and starting her own business, she soon learned that her love and passions lie in helping people and hands-on interventions that change people's lives. Courtney returned to school to earn her BS in Nursing and graduated at the top of her class. From there, she worked at a plastic surgery office in aesthetics, where she spent the last decade acquiring her expertise in injectables and non-surgical procedures. She devotedly brings these skills and passions to her patients at The Maas Clinic™. When she is not at The Maas Clinic™, Courtney enjoys spending quality time with her children, exploring the outdoors, and being grateful for life's simple treasures.

Carolyn, RN

Carolyn, RN

Aesthetic Nurse

Carolyn is a Registered Nurse and Aesthetic Specialist. She came to The Maas Clinic™ with 25 years of nursing experience, primarily in Critical Care and Cardiac Rehabilitation. Carolyn further expanded her skill set to include more "alternative" forms of healing, including biofeedback and Reike. She seamlessly incorporated Aesthetic Medicine into her areas of expertise and enjoys the ongoing relationships that Aesthetic Medicine cultivates. When Carolyn is not practicing the art of healing, she can be seen practicing the art of golf.

Jacqueline, RN

Jacqueline, RN

Aesthetic & Surgical Nurse

Jacqueline joins The Maas Clinic™ with over 20 years of nursing experience. Originally from Canada, she traveled and worked abroad, ultimately landing in San Francisco. After many years working with plastic surgery patients, she is now focused on helping patients through the surgical process and performing aesthetic procedures to help them maintain optimal results. In her spare time, she enjoys the benefits of meditation, exercise, and seeing family and friends.

Sydney

Sydney

Medical Assistant / Aesthetic Medical Technician

After completing her licensure as an Aesthetician, Sydney decided to shift her career path into the medical field of aesthetics and work towards becoming a Physician's Assistant. She enjoys working in an environment where she is constantly allowed to learn and grow with the latest technology, as well as helping patients look and feel their best. Outside of work, Sydney leads a very social and active life.

Ella

Ella

Medical Assistant

Ella is a native Californian who joined the healthcare industry as a certified medical assistant in 2017. After growing up in Santa Barbara and receiving a BA from UC Davis, she attained her CMA license from San Francisco State University. Ella immediately got to work caring for patients. Using her years of experience, she works closely with each patient from initial consultation to post-procedure care. Ella is honored and proud to be a part of our patient's journeys toward looking and feeling better about themselves. Ella can usually be found outdoors playing tennis, snowboarding, at the beach, or the dog park with her puppy when not at the clinic.

Kristen D.

Kristen D.

Medical Assistant / Clinical Research Assistant

Kristen joined The Maas Clinic™ in 2023 as a Medical Assistant and Research Coordinator after graduating from the University of Miami with a BS in Health Science and minors in Biology and Public Health. Before joining the practice, she worked as a Certified Nurse's Aide and a Medical Assistant, where she has enjoyed cultivating a patient-centered approach. Kristen additionally worked as a Research Assistant in a behavioral medicine lab at the University of Connecticut for over two years, contributing to several NIH-funded studies. As an aspiring physician, she is eager to continue growing her medical knowledge and refining her technical abilities through her time at The Maas Clinic™. Kristen enjoys traveling, exercising, and exploring San Francisco in her free time.

Cassidy

Cassidy

Front Office Manager

Cassidy joined The Maas Clinic™ in 2020 after graduating from San Francisco State University with a BA in Communication. She has since returned to school to pursue nursing and hopes to apply to nursing school soon. As our front office coordinator, she is committed to providing our patients with exceptional service, experiences, and results. Outside of work, she enjoys spending time with friends & family, hiking, reading, and traveling.

Teresa

Teresa

Clinical Research Coordinator

Teresa has over a decade of patient care experience in Dermatology, Head and Neck Surgery, and Plastics, and enjoys working with patients and helping them to maintain and achieve their aesthetic goals. She has degrees in Global Health and History from ASU and is a certified clinical research professional with the Society of Clinical Research Associates. Along with Aesthetic Medicine, Teresa is passionate about providing improved medical care for preventable diseases in underrepresented communities and has volunteered locally and abroad. She splits her time working in clinical research at UCSF and The Maas Clinic™ and Appearance Care Center, where she enjoys providing non-invasive aesthetic treatments, pre-and post-operative care, and assisting in clinical trials. When Teresa is not working, she enjoys playing classical piano, traveling, volunteering, and visiting with friends and family.

Kristin M.

Kristin M.

Director of Community Outreach

Kristin came to The Maas Clinic™ with over eleven years of marketing and sales management in the pharmaceutical industry. She excelled in her field with consistent exposure to the medical community by working closely with physicians, medical directors, and hospital administrators, making her a valuable business consultant. As the Director of Community Outreach for the past sixteen years, Kristin enjoys helping The Maas Clinic™ and The Appearance Care Center give back to the community through generous donations to non-profit and other charitable organizations. When she is not at The Maas Clinic™, she is likely with her family, volunteering at her son's schools, or engaged in an outdoor activity amid the beautiful surroundings in Marin County.

Lars

Lars

Videographer / Social Media Manager

After receiving a BA in Film and Digital Media at the University of California, Santa Cruz, Lars joined The Maas Clinic™. in 2022 as our video technician and media manager. With a passion for video creation and digital media since childhood, Lars brings a creative flair and technical expertise to his role. At The Maas Clinic™, you'll find him filming procedures, creating educational videos with Dr. Maas, or further developing his technical skills. During our annual winter conference, Lars plays a vital role in the seamless setup of our video equipment, ensuring the smooth execution of the event. In his free time, Lars enjoys being on the soccer field, playing pickup games, or spending time with friends and family.

Craig Anesthesiologist

Dr. Nielsen is an anesthesiologist specializing in caring for plastic surgery patients' needs for over ten years. He trained at the University of Southern California and is a board-certified anesthesiologist. After residency, Craig moved to Northern California and has made it his home. He has taken a particular interest in volunteering for cleft lip and palate trips in third-world countries. In 2009, he became the San Francisco Rejuvenation Center Medical Director. He loves to travel, kite surf, and mountain bike in his free time.

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